Ok, regarding a windows machine. When you put in your windows CD and restart your machine, it will bring up the "press any key to boot from cd" screen, or some alternitive.

Well...what causes that to happen?

I ask because i recently tried to make my own (perfectly legal) copy of windows, and when I put the burned cd into my machine and restart...nothing comes up at all! It just skips right on past like there no cd in there.

I realise this is a bit of a noob question, but any help would be great.

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mac: a waterproof raincoat made of rubberized fabric
MAC: a data communication protocol sub-layer, also known as the Media Access Control
Mac: a brand name which covers several lines of personal computers designed, developed, and marketed by Apple Inc.